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CARDINAL: A measurement based on a scale or quantitative numbers, such as 1, 5, or 357.2, that enables a comparison in magnitude. Comparability means, for example, that the difference between 5 and 2 is the same as the difference between 12 and 9. Measures such as height and weight use cardinal numbers. Most economic measures are based on cardinal numbers, including gross domestic product, unemployment rate, the price of chocolate, and the quantity of wheat produced. The benefit of cardinal measurement is the ability to directly compare one measure with another. If, for example, the price of chocolate is $1 a pound and the price of wheat is $4 a pound, then wheat is four times more expensive than chocolate. Ordinal measures, which involve relative ranking, is an alternative type of measure.
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MARGINAL PROPENSITY TO CONSUME The proportion of each additional dollar of household income that is used for consumption expenditures. The marginal propensity to consume (abbreviated MPC) is another term for the slope of the consumption line and is calculated as the change in consumption divided by the change in income. The MPC plays a central role in Keynesian economics. It quantifies the consumption-income relation and the fundamental psychological law. It is also a foundation for the slope of the aggregate expenditures line and is critical to the multiplier process. A related consumption measure is the average propensity to consume.
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GRAY SKITTERY
[What's This?]
Today, you are likely to spend a great deal of time wandering around the shopping mall hoping to buy either a birthday greeting card for your grandfather or a weathervane with a cow on top. Be on the lookout for empty parking spaces that appear to be near the entrance to a store.
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The portrait on the quarter is a more accurate likeness of George Washington than that on the dollar bill.
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"A successful man is one who can lay a firm foundation with the bricks others have thrown at him. " -- David Brinkley, newsman
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PPC
Production Possibilities Curve
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